\paragraph{FR1}\label{FR1}
\begin{description}
  \item [Statement] 
    \textnormal{The user shall be able to search the compound whose biodegradation is to be predicted by drawing it in an editor like \gls{Chemaxon's Marvin Sketch}.}
  \item [Figure] Example user interface:\\  \includegraphics[width=90mm]{userinput.png}
  \item [Reference] \textnormal{see user requirement \nameref{UR1}}
  \item [Priority] \textnormal{A}
\end{description}

\paragraph{FR2}\label{FR2}
\begin{description}
  \item [Statement]
    \textnormal{If the user chooses to enter a compound by drawing it, then the system shall be able to automatically create and display the corresponding \gls{SMILES} string in the "`SMILES string"' box.}
  \item [Reference] \textnormal{see user requirement \nameref{UR1}}
  \item [Priority] \textnormal{A}
\end{description}

\paragraph{FR3}\label{FR3}
\begin{description}
  \item [Statement] 
    \textnormal{The user shall be able to enter the compound whose biodegradation is to be predicted by directly entering a \gls{SMILES} string.}
  \item [Reference] \textnormal{see user requirement \nameref{UR1}}
  \item [Priority] \textnormal{A}
\end{description}

\paragraph{FR4}\label{FR4}
\begin{description}
  \item [Statement] 
    \textnormal{The user shall be able to clear the SMILES string he entered or was automatically created by the system.}
   \item [Reference] \textnormal{see user requirement \nameref{UR1}}
  \item [Priority] \textnormal{C}
\end{description}

\paragraph{FR5}\label{FR5}
\begin{description}
  \item [Statement] 
    \textnormal{The user shall be able to choose to see all predicted biotransformations, or only the aerobic transformations (by default, the system will only show the aerobic transformations). If the aerobic option was selected by the user, the system will only display the aerobic transformations which are likely to happen (neutral, likely, very likely). If no very likely, likely or neutral transformations are found, the system will show all possible biotransformations.}
  \item [Reference] \textnormal{see user requirement \nameref{UR2}}
  \item [Priority] \textnormal{A}
\end{description}

\paragraph{FR6}\label{FR6}
\begin{description}
  \item [Statement] 
    \textnormal{The user shall be able to click the detail-button to view a graphic image of the predicted compound, its chemical formular, molecular weight, SMILES string, IDs and links to external websites (PubChem), links to reaction pages in the UM-BBD where the compound is either the substrate or product, etc.}
  \item [Reference] \textnormal{see user requirement \nameref{UR9}}
  \item [Priority] \textnormal{A}
\end{description}

\paragraph{FR7}\label{FR7}
\begin{description}
  \item [Statement] 
     \textnormal{Example for a predicted pathway.\\
     Colored arrows represent the likelyhood of each transformation. The colors and the corresponding probabilities $p$ should be:
     \begin{itemize}
     \item \textbf{dark green} very likely, probability $1 \geq p > 0.8$
     \item \textbf{light green} likely, probability $0.8 \geq p > 0.6$
     \item \textbf{yellow} neutral, probability $0.6 \geq p > 0.4$
     \item \textbf{amber} unlikely, probability $0.4 \geq p > 0.2$
     \item \textbf{red} very unlikely, probability $0.2 \geq p \geq 0$
     \item \textbf{grey} unknown 
   \end{itemize}
     }
  \item [Figure] \includegraphics[width=100mm]{predictedpathway.png}
  \item [Reference] \textnormal{see user requirements \nameref{UR4}}
  \item [Priority] \textnormal{A}
\end{description}

\paragraph{FR8}\label{FR8}
\begin{description}
  \item [Statement] 
    \textnormal{The administrator shall be able to reactivate a deactivated account and reset the account password.}
  \item [Reference] \textnormal{see user requirement \nameref{UR11}, \nameref{SEC9}}
  \item [Priority] \textnormal{A}
\end{description}

\paragraph{FR9}\label{FR9}
\begin{description}
  \item [Statement] 
    \textnormal{The user shall be able to start a new query with a compound from the generated pathway by clicking the next button. (The next button is only available on the last level of the pathway.)}
  \item [Reference] \textnormal{see user requirement \nameref{UR1}}% User req. schauen geg. neu
  \item [Priority] \textnormal{B}
\end{description}

\paragraph{FR10}\label{FR10}
\begin{description}
  \item [Statement] 
   \textnormal{The user shall be able to view only the natural environment transformation.}
  \item [Reference] \textnormal{see user requirement \nameref{UR3}}
  \item [Priority] \textnormal{A}
\end{description}

\paragraph{FR11}\label{FR11}
\begin{description}
  \item [Statement] 
   \textnormal{Expert users, working at the same project are able to see and use the created rules of each other.}
  \item [Reference] \textnormal{see user requirement \nameref{UR13}}
  \item [Priority] \textnormal{A}
\end{description}

\paragraph{FR12}\label{FR12}
\begin{description}
  \item [Statement] 
   \textnormal{Rules that have been tested and confirmed shall be implemented into the productive area by an administrator.}
  \item [Reference] \textnormal{see user requirement \nameref{UR13}}
  \item [Priority] \textnormal{A}
\end{description}

\paragraph{FR13}\label{FR13}
\begin{description}
  \item [Statement] 
   \textnormal{The productive area is available for all users, whereas the development area is reserved only for expert users.}
  \item [Reference] \textnormal{see user requirement \nameref{UR10}}
  \item [Priority] \textnormal{A}
\end{description}